2003-P 50c US Kennedy Half Dollar PCGS Genuine Mint Cancelled.

A "mint canceled coin" generally refers to a coin that was intentionally canceled or rendered non-circulating by the mint before it was released into circulation. These coins are typically coins that were damaged, flawed, or had errors during the minting process, making them unsuitable for normal circulation. To prevent such coins from entering circulation, they were canceled or rendered non-redeemable.

Methods of mint cancellation may include drilling a hole through the coin, notching the edge, or other forms of physical alteration to make them clearly distinguishable from regular coins. Mint canceled coins are not legal tender and are typically sold as novelty items or collector's pieces.

Collectors may have an interest in mint canceled coins, especially if they are interested in error coins or numismatic curiosities. The value of mint canceled coins can vary based on factors such as the rarity of the cancellation method and the coin's overall condition. If you have a specific mint canceled coin and would like to know more about its value or history, it's a good idea to consult with a knowledgeable coin expert or appraiser.